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-rw-r--r--drivers/scsi/megaraid/megaraid_sas.c125
-rw-r--r--drivers/scsi/megaraid/megaraid_sas.h17
2 files changed, 141 insertions, 1 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c
index 6d998e050338..b0d6991cb6f3 100644
--- a/drivers/scsi/megaraid/megaraid_sas.c
+++ b/drivers/scsi/megaraid/megaraid_sas.c
@@ -1520,6 +1520,8 @@ megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev,
return 0;
}
+static void megasas_aen_polling(struct work_struct *work);
+
/**
* megasas_service_aen - Processes an event notification
* @instance: Adapter soft state
@@ -1551,6 +1553,20 @@ megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd)
instance->aen_cmd = NULL;
megasas_return_cmd(instance, cmd);
+
+ if (instance->unload == 0) {
+ struct megasas_aen_event *ev;
+ ev = kzalloc(sizeof(*ev), GFP_ATOMIC);
+ if (!ev) {
+ printk(KERN_ERR "megasas_service_aen: out of memory\n");
+ } else {
+ ev->instance = instance;
+ instance->ev = ev;
+ INIT_WORK(&ev->hotplug_work, megasas_aen_polling);
+ schedule_delayed_work(
+ (struct delayed_work *)&ev->hotplug_work, 0);
+ }
+ }
}
/*
@@ -2075,6 +2091,7 @@ static int megasas_create_frame_pool(struct megasas_instance *instance)
}
cmd->frame->io.context = cmd->index;
+ cmd->frame->io.pad_0 = 0;
}
return 0;
@@ -2271,7 +2288,6 @@ megasas_get_pd_list(struct megasas_instance *instance)
return ret;
}
-
/**
* megasas_get_controller_info - Returns FW's controller structure
* @instance: Adapter soft state
@@ -2986,6 +3002,7 @@ megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
*instance->consumer = 0;
megasas_poll_wait_aen = 0;
instance->flag_ieee = 0;
+ instance->ev = NULL;
instance->evt_detail = pci_alloc_consistent(pdev,
sizeof(struct
@@ -3209,6 +3226,16 @@ megasas_suspend(struct pci_dev *pdev, pm_message_t state)
megasas_flush_cache(instance);
megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN);
+
+ /* cancel the delayed work if this work still in queue */
+ if (instance->ev != NULL) {
+ struct megasas_aen_event *ev = instance->ev;
+ cancel_delayed_work(
+ (struct delayed_work *)&ev->hotplug_work);
+ flush_scheduled_work();
+ instance->ev = NULL;
+ }
+
tasklet_kill(&instance->isr_tasklet);
pci_set_drvdata(instance->pdev, instance);
@@ -3349,6 +3376,16 @@ static void __devexit megasas_detach_one(struct pci_dev *pdev)
scsi_remove_host(instance->host);
megasas_flush_cache(instance);
megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);
+
+ /* cancel the delayed work if this work still in queue*/
+ if (instance->ev != NULL) {
+ struct megasas_aen_event *ev = instance->ev;
+ cancel_delayed_work(
+ (struct delayed_work *)&ev->hotplug_work);
+ flush_scheduled_work();
+ instance->ev = NULL;
+ }
+
tasklet_kill(&instance->isr_tasklet);
/*
@@ -3913,6 +3950,92 @@ out:
return retval;
}
+static void
+megasas_aen_polling(struct work_struct *work)
+{
+ struct megasas_aen_event *ev =
+ container_of(work, struct megasas_aen_event, hotplug_work);
+ struct megasas_instance *instance = ev->instance;
+ union megasas_evt_class_locale class_locale;
+ struct Scsi_Host *host;
+ struct scsi_device *sdev1;
+ u16 pd_index = 0;
+ int i, j, doscan = 0;
+ u32 seq_num;
+ int error;
+
+ if (!instance) {
+ printk(KERN_ERR "invalid instance!\n");
+ kfree(ev);
+ return;
+ }
+ instance->ev = NULL;
+ host = instance->host;
+ if (instance->evt_detail) {
+
+ switch (instance->evt_detail->code) {
+ case MR_EVT_PD_INSERTED:
+ case MR_EVT_PD_REMOVED:
+ case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED:
+ doscan = 1;
+ break;
+ default:
+ doscan = 0;
+ break;
+ }
+ } else {
+ printk(KERN_ERR "invalid evt_detail!\n");
+ kfree(ev);
+ return;
+ }
+
+ if (doscan) {
+ printk(KERN_INFO "scanning ...\n");
+ megasas_get_pd_list(instance);
+ for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) {
+ for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
+ pd_index = i*MEGASAS_MAX_DEV_PER_CHANNEL + j;
+ sdev1 = scsi_device_lookup(host, i, j, 0);
+ if (instance->pd_list[pd_index].driveState ==
+ MR_PD_STATE_SYSTEM) {
+ if (!sdev1) {
+ scsi_add_device(host, i, j, 0);
+ }
+ if (sdev1)
+ scsi_device_put(sdev1);
+ } else {
+ if (sdev1) {
+ scsi_remove_device(sdev1);
+ scsi_device_put(sdev1);
+ }
+ }
+ }
+ }
+ }
+
+ if ( instance->aen_cmd != NULL ) {
+ kfree(ev);
+ return ;
+ }
+
+ seq_num = instance->evt_detail->seq_num + 1;
+
+ /* Register AEN with FW for latest sequence number plus 1 */
+ class_locale.members.reserved = 0;
+ class_locale.members.locale = MR_EVT_LOCALE_ALL;
+ class_locale.members.class = MR_EVT_CLASS_DEBUG;
+ mutex_lock(&instance->aen_mutex);
+ error = megasas_register_aen(instance, seq_num,
+ class_locale.word);
+ mutex_unlock(&instance->aen_mutex);
+
+ if (error)
+ printk(KERN_ERR "register aen failed error %x\n", error);
+
+ kfree(ev);
+}
+
+
static DRIVER_ATTR(poll_mode_io, S_IRUGO|S_IWUGO,
megasas_sysfs_show_poll_mode_io,
megasas_sysfs_set_poll_mode_io);
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index 13ac37e80075..cd1c008f9ab8 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -285,6 +285,17 @@ enum MR_PD_QUERY_TYPE {
MR_PD_QUERY_TYPE_EXPOSED_TO_HOST = 5,
};
+#define MR_EVT_CFG_CLEARED 0x0004
+#define MR_EVT_LD_STATE_CHANGE 0x0051
+#define MR_EVT_PD_INSERTED 0x005b
+#define MR_EVT_PD_REMOVED 0x0070
+#define MR_EVT_LD_CREATED 0x008a
+#define MR_EVT_LD_DELETED 0x008b
+#define MR_EVT_FOREIGN_CFG_IMPORTED 0x00db
+#define MR_EVT_LD_OFFLINE 0x00fc
+#define MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED 0x0152
+#define MAX_LOGICAL_DRIVES 64
+
enum MR_PD_STATE {
MR_PD_STATE_UNCONFIGURED_GOOD = 0x00,
MR_PD_STATE_UNCONFIGURED_BAD = 0x01,
@@ -1157,6 +1168,11 @@ struct megasas_evt_detail {
} __attribute__ ((packed));
+struct megasas_aen_event {
+ struct work_struct hotplug_work;
+ struct megasas_instance *instance;
+};
+
struct megasas_instance {
u32 *producer;
@@ -1176,6 +1192,7 @@ struct megasas_instance {
u16 max_num_sge;
u16 max_fw_cmds;
u32 max_sectors_per_req;
+ struct megasas_aen_event *ev;
struct megasas_cmd **cmd_list;
struct list_head cmd_pool;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-20 09:54:14 +0100